IT1092587B - MEANS TO TEACH THE BASIC PRINCIPLES OF ARITHMETIC CALCULATION - Google Patents
MEANS TO TEACH THE BASIC PRINCIPLES OF ARITHMETIC CALCULATIONInfo
- Publication number
- IT1092587B IT1092587B IT20073/78A IT2007378A IT1092587B IT 1092587 B IT1092587 B IT 1092587B IT 20073/78 A IT20073/78 A IT 20073/78A IT 2007378 A IT2007378 A IT 2007378A IT 1092587 B IT1092587 B IT 1092587B
- Authority
- IT
- Italy
- Prior art keywords
- teach
- basic principles
- arithmetic calculation
- arithmetic
- calculation
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Entrepreneurship & Innovation (AREA)
- Theoretical Computer Science (AREA)
- Toys (AREA)
- Electrically Operated Instructional Devices (AREA)
- Instructional Devices (AREA)
- Radiation-Therapy Devices (AREA)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH243677A CH604305A5 (en) | 1977-02-25 | 1977-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7820073A0 IT7820073A0 (en) | 1978-02-07 |
IT1092587B true IT1092587B (en) | 1985-07-12 |
Family
ID=4233756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20073/78A IT1092587B (en) | 1977-02-25 | 1978-02-07 | MEANS TO TEACH THE BASIC PRINCIPLES OF ARITHMETIC CALCULATION |
Country Status (16)
Country | Link |
---|---|
US (1) | US4192085A (en) |
JP (1) | JPS53106230A (en) |
AT (1) | AT371609B (en) |
BE (1) | BE864246A (en) |
CA (1) | CA1101663A (en) |
CH (1) | CH604305A5 (en) |
CS (1) | CS205113B2 (en) |
DD (1) | DD134576A5 (en) |
DE (1) | DE2806482A1 (en) |
ES (1) | ES234059Y (en) |
FR (1) | FR2382048A1 (en) |
GB (1) | GB1578690A (en) |
HK (1) | HK34181A (en) |
IT (1) | IT1092587B (en) |
NL (1) | NL7802093A (en) |
PL (1) | PL118482B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3130394A1 (en) * | 1981-07-31 | 1983-02-17 | Deutsche Hilti GmbH, 8000 München | Device for determining a usable technical product in dependence on selectable parameters |
FR2564401B1 (en) * | 1984-05-17 | 1989-07-28 | Dba | CONTROL DEVICE FOR BRAKE CORRECTOR |
GB2253507B (en) * | 1991-03-08 | 1995-06-28 | Snr Paul Banerjee | Game apparatus |
US5366378A (en) * | 1991-06-13 | 1994-11-22 | Nek Enterprises, Inc. | Visual teaching aid |
GB2291250A (en) * | 1994-07-08 | 1996-01-17 | Alexander Mcpherson Gibbons | Word construction apparatus |
US20130236864A1 (en) * | 2012-03-08 | 2013-09-12 | James Richard Harte | Use of colored beads in an augmented simple abacus |
CN110459101B (en) * | 2019-07-19 | 2021-08-27 | 湖南湘军教育科技发展有限公司 | Infant abacus preliminary learning guiding equipment |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US973905A (en) * | 1910-05-11 | 1910-10-25 | John W Alexander | Adding apparatus. |
US1165058A (en) * | 1915-02-12 | 1915-12-21 | Richard L Behan | Kindergarten device. |
US1188490A (en) * | 1915-09-03 | 1916-06-27 | Educational Novelty Company | Toy. |
US1372087A (en) * | 1918-04-20 | 1921-03-22 | Roddy Frances Ayres | Apparatus for illustrating and demonstrating the principles of pure arithmetic |
DE340146C (en) * | 1920-08-29 | 1921-09-05 | Moritz Bangemann | Teaching aids for arithmetic using numerals on parallel rods |
GB632330A (en) * | 1947-05-14 | 1949-11-21 | Edward Ernest Keegan | A toy calculating device |
DE829517C (en) * | 1950-01-25 | 1952-01-28 | Albert Schueder | Calculating machine for school arithmetic as a teaching aid |
US3147556A (en) * | 1961-09-14 | 1964-09-08 | Murray D Prusmack | Calculating device |
US3690019A (en) * | 1970-12-23 | 1972-09-12 | Diana S Fernandez | Number sequence teaching aid |
-
1977
- 1977-02-25 CH CH243677A patent/CH604305A5/xx not_active IP Right Cessation
-
1978
- 1978-02-07 IT IT20073/78A patent/IT1092587B/en active
- 1978-02-09 AT AT0090178A patent/AT371609B/en not_active IP Right Cessation
- 1978-02-09 CA CA296,538A patent/CA1101663A/en not_active Expired
- 1978-02-16 DE DE19782806482 patent/DE2806482A1/en not_active Withdrawn
- 1978-02-20 ES ES1978234059U patent/ES234059Y/en not_active Expired
- 1978-02-21 US US05/879,245 patent/US4192085A/en not_active Expired - Lifetime
- 1978-02-22 FR FR7805079A patent/FR2382048A1/en active Granted
- 1978-02-22 CS CS781115A patent/CS205113B2/en unknown
- 1978-02-22 GB GB7090/78A patent/GB1578690A/en not_active Expired
- 1978-02-23 PL PL1978204857A patent/PL118482B1/en unknown
- 1978-02-23 DD DD203826A patent/DD134576A5/en unknown
- 1978-02-23 BE BE185414A patent/BE864246A/en not_active IP Right Cessation
- 1978-02-24 NL NL7802093A patent/NL7802093A/en not_active Application Discontinuation
- 1978-02-24 JP JP1996378A patent/JPS53106230A/en active Pending
-
1981
- 1981-07-16 HK HK341/81A patent/HK34181A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE864246A (en) | 1978-06-16 |
CA1101663A (en) | 1981-05-26 |
IT7820073A0 (en) | 1978-02-07 |
DD134576A5 (en) | 1979-03-07 |
ES234059Y (en) | 1978-09-01 |
CS205113B2 (en) | 1981-04-30 |
ES234059U (en) | 1978-04-16 |
FR2382048A1 (en) | 1978-09-22 |
HK34181A (en) | 1981-07-24 |
JPS53106230A (en) | 1978-09-16 |
FR2382048B1 (en) | 1979-07-13 |
ATA90178A (en) | 1982-11-15 |
NL7802093A (en) | 1978-08-29 |
DE2806482A1 (en) | 1978-08-31 |
US4192085A (en) | 1980-03-11 |
PL204857A1 (en) | 1979-01-29 |
AT371609B (en) | 1983-07-11 |
GB1578690A (en) | 1980-11-05 |
CH604305A5 (en) | 1978-09-15 |
PL118482B1 (en) | 1981-10-31 |
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